Control of the tripping mechanisms of a printing-press.



H. PEARCE, T. R. G. PARKER & F. W WRIGHT.

CONTROL OF THE TRIPPING MECHANISM OF A PRINTING PRESS. APPLICATION FILED JULYZZ, 1912.

Unrrnn s'rn'rns Parana caries.

HERBERT PEARCE, THOMAS ROBERT GILLETT PARKER, AND FRED WESLEY WEIGHT,

0]? BROADHEATH, ENGLAND, ASSIGNOBS '10 LINOTYPE AND MACHINERY LIIEITED,

OF LONDON, ENGLAND.

. CONTROL or 'rnn 'rarrrme Specification of Letters Patent.

MECHANISMS OF A PRINTING-PRESS.

Patented June 8, 1915.

Application filed July 22, 1912. Serial 1T0. 710,894.

To all whom it may concern:

Be it known that we, HERBERT PEARCE, THOMAS ROBERT GILLETT PARKER, and FRED WESLEY WRIGHT, subjects of the King ofthe United Kingdom of Great Britain and Ireland, residing at Linotype and Machinery Works, Broadheath, in the county of Chester, England, have invented Improved is characterized by the draw-back that it is must, to manipulate them, move 'the other.

controlled by a hand lever, or equivalent, limited to it, and that all these levers present themselves in diiferent positions distributed about the press and entirely independent of each other, so that the attendant from one to The object of the present invention is to obviate the consequences of this drawback and the invention itself consists in bringiplg the several controlling levers of the in g rollers, the ink; ductor roller, the water ductor roller, or of any other organ which has to be tripped manually and occasionally, into a grouped position within easy reach of the feeder from his position on the footboard because he may find himself called upon at any moment to manipulate any of the said levers, as well as within easy reach of the attendant from the position which he will occupy when he is attending to the forms or plate, because it is at such times that manipulation of the levers by him will be necessary, and, in connecting hem all, after they have been so brought together, to

'the tripping mechanism of another organ and, in particular,

a slotted arms in its scope to doing this,

ally connected by one end to the cam 2 vation illustrating the invention generally a preferred form of its application to the two mechanisms and one or an just mentioned.

eferring to it, 1 is the base of the machine; 2, the form or plate cylinder; 3, 3 to support the bearings of the inking rollers for the cylinder 2; 4, a rin at each end ofthe cylinder 2 and to 'Wl'llCl l the respective arms 3 are fast and which rings are reciprocated about a shaft5 to trip and untrip the said rollers, by arms 6. These arms are reciprocated from an automatically reciprocated shaft 7 throu h an arm 8, a link 9, an arm 10, a shaft arms 12 and links 13. Neither the combination of parts 3 to 6 nor of 7 to 13 form per 86 any part of the present invention. 14 is the water fountain and roller; 15, the water ductor; 16, the frame vibratin' the ductor 15 about the axis of a stud or s aft 17 between the water fountain roller 14 and the vibrator roller 18; and 19, l9, the dampers together constituting the damper. One wellknown means of tripping the damper consists of a cam 20 rocked by an external hand lever (not shown) about an axis 21, and restricted into the path of the vibrating frame 16 of the water ductor 15, thereby holding the latter out of contact with the water fountain roller 14. An equally well known means of tri pin the ink ductor roller consists of a roc mg ook on the top of a link 22 that is likewise worked by an external hand lever restricted in its scope to doing this, and which hook is moved into the path of a spring rotrnded finger on the vibrating frame of the said roller, so as to engage with it when the latter is in contact with the ink distributing drum, looking it in this osition an so stopping the ink supply. nly the link 22 of this ink ductor roller trip is included in the drawing.

According to the preferred form above mentioned, 23 is a bell crank lever fulcrumed at 24 on the feeder side frame of the press and in front of the inking roller trip mechanism. One arm of it is plvotally connected as at 25 to the link 9 of that mechanism while the opposite one hangs downward. As to the damper, 26 is a bar (pivot (but on the o posite side of its axis 21) and pro longed y the side of the stud 1n its bottom edge,

. ping mechanism partake of the trip and so long said side frame toward and just past the front end of the press where it terminates in a hand grip 27. 28 is a stud projecting laterally from the hanging arin of the lever 23 and 29 a notch in the bottom edge of the bar.26, so that when the notchis engaged on the stud, the cam 20 is operatively connected with the inking roller trip mechanism with the result that the damper will be tripped and 1mtripped by it, so lon as the said notch and remainen age. 30 is a secon stud on the said side frame and 31 a second notch in the bottom the bar 26, both I gagemen't'pfthe notch 31 on the stud 30 trips the damper and holds ittripped.

32 is-a third stud so positioned on the same side, frame that engagement of the notch 31 with it, untrips the damper and holdsit untripped. And as to the ink ductor roller, '33 is a bell crank lever fulcrumed on the same side frameas the lever 23, as at 34, in front of the link 22 and having one arm pivotally connected to the bottom end of the latter, the other arm hanging downward. 35 is a bar pivotally connected by its rear end to the outer end of the said downwardly hanging arm and prolonged in exactly the same way as the bar 26 and likewise terminating in a similar grip 36. Thus both grips are distinct from'each other and both are positioned so as tobe Within-both view and reach of feeder and of attendant. The bar 35 has three notches 37, 38 and 38 the first cooperating with downwardly hanging arm of the lever 23 in the same way as the notch 29 with the stud 28, the stud 40 in a similar m either or both the lever 23, so

a stud 39 on the I er. So long as bars 26, 35, are connecte to long Wlll the respective trip- Pmg and untnppmg movements of the shaft 7, as either or both the said bars are disconnected from the said lever 23, so long will the respective tripping mechanism remain at rest in the tripped or 'untripped position according to which of the studs 30 or 32 is engaged with'notch 31 in bar'26 in the one case, and which of the notches 38 or 38 in bar 35 is engaged with stud 40 in the other. case. The lower end of link 22 is formed with a slot 22", the object of which is to prevent release of the ink ductor tri when bar 35 is engaged with stud 39, until the high part of the cam which rocks the ink ductor lever shaft and levers has reached its operative position, when the link 22 will fall to its lowest position by gravity. Otherwise, the release of the ink ductor trip by reason of its connectionwith the ink roller trip occurring at a moment when the low part of the said cam is in the operative posiedge of so posi tioned that the enmeansby which any 0 and the two latter with of a plurality of tripping crating automatically during the normal anisms as there-are'in the press less the one,

as the inking rollertripping mechanism, to

st mentioned are too well known in the art to require further descripwhich they are temporarily connected. Thus both the feeder and the attendant, eachiacting on his own initiative as suggested byliis respective duties, "has group'ed within his reach and control, each and all of a plurality of the automatic trippingmechanisms .to the extent of manually putting any or all of them into either the tripped or the untripped position or of connecting them; with an independent automatic tripping mechanism.

Having described our 1nvention,flwe declare that what we claim by Letters Patent is 1. In a printing r and desire to secure automatic tripping mechanisms capable of being tripped independently of each other and occasionally; a tripping mechanism operated automatically during each normal cycle of the press, of the plurality above mentioned; means grouping theisaid plurality [within easy reach and control of independently of any oneeither thepress feeder or the press attendant whenin their re- 'spective normal. working positions; means.

by which anyor all of the said .plurality can be manually tripped or-untripped; and r all as aforesaid can be connected to the automatically operated tripping mechanism aforesaid.

2; In a printing. press, a pluralit automatic tripping mechanisms capab eof being tripped independently and occasion-' ally; a tripping mechanism olp'erated inde-.-

pendently of any one of the p urality above mentioned; a bar from each of the plurality of mechanisms to be tripped; a' grip presented by it. clear of the press frame and in the immediate neighborhood and practically parallel with all the other grips so presented; a detachable connection between each of the said bars and the inde endently operated tripping mechanism; and a detent to hold the respective bar in its detached position. Y 4

3. In a printing press ,'the combination workin of the press, manually. operable means or controlling the operation of each mechanisms opof a plurality of tripping mechanisms op.- erating automatically during the normal working of the press, manually operable means for controlling the operation of each of said mechanisms, a tripping mechanism operated automatically during each normal cycle of the press and independently of the mechanisms above mentioned, and manual and detachable means for temporarily connecting the independently operated mechanism with one or more of the controlling means as desired.

5. Ina printing press, the combination of a plurality of automatic tripping mechanisms, an independently operated device operating automatically during each normal cycle of the press,

ping mechanisms may be operated by the and manually operable means for controlling the operation of each' erable devices connected with said mechanisms, respectively, said devices being extended to and grouped at :a common point Within easy reach of the operator; whereby the said devices may be operated independently or may be conveniently connected together for conjoint automatic operation.

In witness whereof we have hereunto set our hands in the presence of two witnesses.

ERBERT PEARCE. THOMAS ROBERT GILLETT PARKER. FRED WESLEY WRIGHT. Witnesses:

WlLLrAM EDWARD BENNISON J OSEPE LAMEL 

